CN204961001U - Engine rocking arm axial limit structure - Google Patents
Engine rocking arm axial limit structure Download PDFInfo
- Publication number
- CN204961001U CN204961001U CN201520552014.4U CN201520552014U CN204961001U CN 204961001 U CN204961001 U CN 204961001U CN 201520552014 U CN201520552014 U CN 201520552014U CN 204961001 U CN204961001 U CN 204961001U
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- guide pillar
- spacing
- mounting hole
- rocking arm
- groove
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Abstract
The utility model discloses an engine rocking arm axial limit structure, including rocking arm, rocking arm axle, be equipped with a mounting hole on the rocking arm, rocking arm axle cartridge is equipped with annular oil groove in the axle mounting hole in the axle mounting hole, be equipped with length along the radial spacing slot that extends on the outer disc of rocking arm axle, and spacing slot is corresponding with the position of annular oil groove, and the tank bottom position that lies in annular oil groove on the rocking arm is equipped with the guide pillar mounting hole, installs spacing guide pillar in the guide pillar mounting hole, and the front end of spacing guide pillar stretches into spacing ditch inslot. The utility model discloses can realize that engine rocking arm axial is spacing, have more that simple structure, result of use are better, the lightweight that is favorable to the engine and a beneficial effect of densification design.
Description
Technical field
The utility model relates to technical field of engines, relates to the axial limit structure of a kind of engine rocker specifically.
Background technique
Engine rocker is mounted in a double-arm lever on cylinder cap, take pitman arm shaft as fulcrum, two-arm Length discrepancy, and usual galianconism end is used for being screwed into valve adjusting screw, and long arm end is used for promoting the unlatching of valve.In order to ensure that rocking arm accurately opens valve, usually need to carry out axial limiting to it.Carrying out spacing structure many employings thrust spring, thrust ring or circlip to engine rocker at present coordinates rocker arm bracket and butterfly spring packing ring to realize, the axial limit structures of these engine rockers often complex structure, is unfavorable for motor light-weight design and higher to motor requirements of installation space.
Summary of the invention
The purpose of this utility model is to provide the axial limit structure of the simple engine rocker of a kind of structure.
For achieving the above object, the utility model comprises rocking arm, pitman arm shaft; rocking arm is provided with axle mounting hole; pitman arm shaft is inserted in axle mounting hole; be provided with annular oil groove in axle mounting hole; its structural feature is the spacing groove that the periphery of described pitman arm shaft is provided with length and radially extends; spacing groove is corresponding with the position of annular oil groove; groove bottom part rocking arm being positioned at annular oil groove is provided with guide pillar mounting hole; be provided with spacing guide pillar in guide pillar mounting hole, and the front end of spacing guide pillar extend in spacing groove.
Described spacing guide pillar comprises the thread section being positioned at anterior cylindrical section and being positioned at rear portion, guide pillar mounting hole is tapped through hole, the thread section of spacing guide pillar screws in tapped through hole, and the diameter of cylindrical section is less than or equal to the diameter of thread of thread section, and cylindrical section extend in spacing groove.
The rear end of described spacing guide pillar is provided with the head expanded.
Described spacing guide pillar is tapered pin, and guide pillar mounting hole is the cone shape hole matched.
After adopting said structure, spacing guide pillar can only be movable along spacing groove, so can realize the axial limiting to engine rocker; Annular oil groove is corresponding with the position of spacing groove, and the lubricant oil in annular oil groove can enter in spacing groove, the smooth and easy and wearing and tearing that can reduce spacing guide pillar of the activity between spacing guide pillar and spacing groove of so can ensureing.As can be seen here, structure of the present utility model is comparatively simple, and using effect is better, is conducive to lightweight and the compact designed of motor.Spacing guide pillar comprises cylindrical section, thread section, spacing guide pillar can be screwed in the guide pillar mounting hole on rocking arm by thread section, assemble comparatively simple, the diameter of cylindrical section is less than or equal to the diameter of thread of thread section, cylindrical section extend in spacing groove after can appearing guide pillar mounting hole, realizes its coordinating with spacing groove; The rear end of spacing guide pillar is provided with the head expanded, and when mounting limit guide pillar, it may be used for clamping and can play the effect of location; Spacing guide pillar is tapered pin, and guide pillar mounting hole is the cone shape hole matched, and both are connected by interference fit, comparatively convenient during assembling.
In sum, it is axially spacing that the utility model can realize engine rocker, have more that structure is simple, using effect better, be conducive to the lightweight of motor and the beneficial effect of compact designed.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described in detail:
Fig. 1 is the structural representation of the first embodiment of the utility model;
Fig. 2 is the structural representation of spacing guide pillar in the first embodiment of the utility model;
Fig. 3 is the structural representation of the utility model the second embodiment.
Embodiment
With reference to accompanying drawing, the axial limit structure of this engine rocker comprises rocking arm 1, pitman arm shaft 2; rocking arm 1 is provided with axle mounting hole 3; pitman arm shaft 2 is inserted in axle mounting hole 3; be provided with annular oil groove 4 in axle mounting hole 3; periphery of pitman arm shaft 2 is provided with the spacing groove 5 that length radially extends; spacing groove 5 is corresponding with the position of annular oil groove 4; groove bottom part rocking arm 1 being positioned at annular oil groove 4 is provided with guide pillar mounting hole 6; be provided with spacing guide pillar 7 in guide pillar mounting hole 6, and the front end of spacing guide pillar 7 extend in spacing groove 5.Time in running order, spacing guide pillar 7 can only be movable along spacing groove 5, so can realize the axial limiting to rocking arm 1; Annular oil groove 4 is corresponding with the position of spacing groove 5, and the lubricant oil in annular oil groove 4 can enter in spacing groove 5, the smooth and easy and wearing and tearing that can reduce spacing guide pillar 7 of the activity between spacing guide pillar 7 and spacing groove 5 of so can ensureing.
In the first embodiment, spacing guide pillar 7 comprises the thread section 9 being positioned at anterior cylindrical section 8 and being positioned at rear portion, guide pillar mounting hole 6 is tapped through hole, the thread section of spacing guide pillar 7 screws in tapped through hole, the diameter of cylindrical section 8 is less than or equal to the diameter of thread of thread section 9, cylindrical section 8 extend in spacing groove 5, and the rear end of spacing guide pillar 7 is provided with the head 10 expanded.After adopting this structure, can spacing guide pillar 7 be screwed in the guide pillar mounting hole 6 on rocking arm 1 by thread section 9, assemble comparatively simple, cylindrical section 8 extend in spacing groove 5 after can appearing guide pillar mounting hole 6, realize its coordinating with spacing groove 5, the rear end of spacing guide pillar 7 is provided with the head 10 expanded, and when mounting limit guide pillar 7, it may be used for clamping and can play the effect of location.
In the second embodiment, spacing guide pillar 7 is tapered pin, the cone shape hole of guide pillar mounting hole 6 for matching.Both are connected by interference fit, comparatively convenient during assembling.
Claims (4)
1. the axial limit structure of engine rocker, comprise rocking arm (1), pitman arm shaft (2), rocking arm (1) is provided with axle mounting hole (3), pitman arm shaft (2) is inserted in axle mounting hole (3), annular oil groove (4) is provided with in axle mounting hole (3), it is characterized in that the spacing groove (5) that the periphery of described pitman arm shaft (2) is provided with length and radially extends, spacing groove (5) is corresponding with the position of annular oil groove (4), groove bottom part rocking arm (1) being positioned at annular oil groove (4) is provided with guide pillar mounting hole (6), spacing guide pillar (7) is installed in guide pillar mounting hole (6), the front end of spacing guide pillar (7) extend in spacing groove (5).
2. the axial limit structure of engine rocker according to claim 1, it is characterized in that described spacing guide pillar (7) comprises the thread section (9) being positioned at anterior cylindrical section (8) and being positioned at rear portion, guide pillar mounting hole (6) is tapped through hole, the thread section of spacing guide pillar (7) screws in tapped through hole, the diameter of cylindrical section (8) is less than or equal to the diameter of thread of thread section (9), and cylindrical section (8) extend in spacing groove (5).
3. the axial limit structure of engine rocker according to claim 2, is characterized in that the rear end of described spacing guide pillar (7) is provided with the head (10) expanded.
4. the axial limit structure of engine rocker according to claim 1, is characterized in that described spacing guide pillar (7) is tapered pin, guide pillar mounting hole (6) cone shape hole for matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520552014.4U CN204961001U (en) | 2015-07-28 | 2015-07-28 | Engine rocking arm axial limit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520552014.4U CN204961001U (en) | 2015-07-28 | 2015-07-28 | Engine rocking arm axial limit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204961001U true CN204961001U (en) | 2016-01-13 |
Family
ID=55056072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520552014.4U Active CN204961001U (en) | 2015-07-28 | 2015-07-28 | Engine rocking arm axial limit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204961001U (en) |
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2015
- 2015-07-28 CN CN201520552014.4U patent/CN204961001U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |